A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications
The use of semiconductor photocatalysis is a promising, green, and sustainable technology to address solar energy conversion and environmental remediation issues. Among photocatalytically active semiconductors, considerable attention has been given to the visible-light active tungsten oxide (WO3, Eg...
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| Format: | Article |
| Language: | English |
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Elsevier
2021
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| Online Access: | http://eprints.uanl.mx/22403/2/22403.pdf |
| _version_ | 1824416513247936512 |
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| author | Murillo Sierra, Juan Camilo Hernández Ramírez, Aracely Hinojosa Reyes, Laura Guzmán Mar, Jorge Luis |
| author_facet | Murillo Sierra, Juan Camilo Hernández Ramírez, Aracely Hinojosa Reyes, Laura Guzmán Mar, Jorge Luis |
| author_sort | Murillo Sierra, Juan Camilo |
| collection | Repositorio Institucional |
| description | The use of semiconductor photocatalysis is a promising, green, and sustainable technology to address solar energy conversion and environmental remediation issues. Among photocatalytically active semiconductors, considerable attention has been given to the visible-light active tungsten oxide (WO3, Eg value ≈ 2.7–3.1 eV). This
semiconductor has several advantages: strong absorption in the visible spectrum range, stability in acidic and
oxidative conditions, low cost, and low toxicity. However, WO3 presents fast recombination of charge carriers’
and exhibits low photocatalytic activity for reduction reactions due to its conduction band potential (+0.5 V versus NHE). Many strategies have been applied to enhance photocatalytic activity and solar energy utilization of
WO3 by modifying the energy band position and reducing the charge carrier recombination. In this review, several approaches, such as designing with exposed facets and specific morphologies, doping with transition metals
and non-metals, deposition of noble metals, and heterojunction construction, are summarized.
Moreover, the photocatalytic properties of the reviewed WO3-based photocatalysts are discussed based on their
environmental applications such as degradation of organic pollutants, air purification, CO2 photoreduction, hydrogen production from water splitting and recently, simultaneous wastewater treatment and electric energy generation by photocatalytic fuel cells. Finally, the summary, future perspectives, and challenges of design novel WO3-based photocatalysts with high efficiency are pointed out to meet the urgent demands of highly efficient technologies that use visible or solar energy for environmental applications. |
| format | Article |
| id | eprints-22403 |
| institution | UANL |
| language | English |
| publishDate | 2021 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | eprints-224032024-03-06T16:00:32Z http://eprints.uanl.mx/22403/ A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications Murillo Sierra, Juan Camilo Hernández Ramírez, Aracely Hinojosa Reyes, Laura Guzmán Mar, Jorge Luis TP Tecnología Química The use of semiconductor photocatalysis is a promising, green, and sustainable technology to address solar energy conversion and environmental remediation issues. Among photocatalytically active semiconductors, considerable attention has been given to the visible-light active tungsten oxide (WO3, Eg value ≈ 2.7–3.1 eV). This semiconductor has several advantages: strong absorption in the visible spectrum range, stability in acidic and oxidative conditions, low cost, and low toxicity. However, WO3 presents fast recombination of charge carriers’ and exhibits low photocatalytic activity for reduction reactions due to its conduction band potential (+0.5 V versus NHE). Many strategies have been applied to enhance photocatalytic activity and solar energy utilization of WO3 by modifying the energy band position and reducing the charge carrier recombination. In this review, several approaches, such as designing with exposed facets and specific morphologies, doping with transition metals and non-metals, deposition of noble metals, and heterojunction construction, are summarized. Moreover, the photocatalytic properties of the reviewed WO3-based photocatalysts are discussed based on their environmental applications such as degradation of organic pollutants, air purification, CO2 photoreduction, hydrogen production from water splitting and recently, simultaneous wastewater treatment and electric energy generation by photocatalytic fuel cells. Finally, the summary, future perspectives, and challenges of design novel WO3-based photocatalysts with high efficiency are pointed out to meet the urgent demands of highly efficient technologies that use visible or solar energy for environmental applications. Elsevier 2021 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/22403/2/22403.pdf http://eprints.uanl.mx/22403/2.haspreviewThumbnailVersion/22403.pdf Murillo Sierra, Juan Camilo y Hernández Ramírez, Aracely y Hinojosa Reyes, Laura y Guzmán Mar, Jorge Luis (2021) A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications. Chemical engineering journal advances, 5. p. 100070. ISSN 2666-8211 http://doi.org/10.1016/j.ceja.2020.100070 doi:10.1016/j.ceja.2020.100070 |
| spellingShingle | TP Tecnología Química Murillo Sierra, Juan Camilo Hernández Ramírez, Aracely Hinojosa Reyes, Laura Guzmán Mar, Jorge Luis A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| title_full | A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| title_fullStr | A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| title_full_unstemmed | A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| title_short | A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications |
| title_sort | review on the development of visible light responsive wo3 based photocatalysts for environmental applications |
| topic | TP Tecnología Química |
| url | http://eprints.uanl.mx/22403/2/22403.pdf |
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